Home / 13,241.03-19,872.92-7,686.65

Finding the Fourth Proportional to 13,241.03, 19,872.92 and 7,686.65

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Solution

The fourth proportional to 13,241.03, 19,872.92 and 7,686.65 is: 11,536.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241.03 : 19,872.92 = 7,686.65 : x
  2. Step 2: Convert to fraction form
    13,241.03/19,872.92 = 7,686.65/x
  3. Step 3: Cross multiply
    13,241.03x = 19,872.92 × 7,686.65
  4. Step 4: Simplify right side
    13,241.03x = 152,756,249.42
  5. Step 5: Solve for x
    x = 152,756,249.42/13,241.03
  6. Step 6: Final answer
    x = 11,536.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.